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<h1 class="epydoc">Source Code for <a href="ProvCon.func.decorators-module.html">Module ProvCon.func.decorators</a></h1>
<pre class="py-src">
<a name="L1"></a><tt class="py-lineno"> 1</tt>  <tt class="py-line"><tt class="py-comment">##$Id: decorators.py 63 2008-12-24 13:02:17Z wroniasty $</tt> </tt>
<a name="L2"></a><tt class="py-lineno"> 2</tt>  <tt class="py-line"><tt class="py-keyword">import</tt> <tt class="py-name">exceptions</tt> </tt>
<a name="L3"></a><tt class="py-lineno"> 3</tt>  <tt class="py-line"> </tt>
<a name="L4"></a><tt class="py-lineno"> 4</tt>  <tt class="py-line"><tt id="link-0" class="py-name" targets="Variable ProvCon.dbui.abstractui.fields.__revision__=ProvCon.dbui.abstractui.fields-module.html#__revision__,Variable ProvCon.dbui.abstractui.forms.__revision__=ProvCon.dbui.abstractui.forms-module.html#__revision__,Variable ProvCon.dbui.abstractui.navigators.__revision__=ProvCon.dbui.abstractui.navigators-module.html#__revision__,Variable ProvCon.dbui.abstractui.recordlists.__revision__=ProvCon.dbui.abstractui.recordlists-module.html#__revision__,Variable ProvCon.dbui.meta.field.__revision__=ProvCon.dbui.meta.field-module.html#__revision__,Variable ProvCon.dbui.orm.form.__revision__=ProvCon.dbui.orm.form-module.html#__revision__,Variable ProvCon.dbui.orm.record.__revision__=ProvCon.dbui.orm.record-module.html#__revision__,Variable ProvCon.dbui.orm.recordlist.__revision__=ProvCon.dbui.orm.recordlist-module.html#__revision__,Variable ProvCon.dbui.wxwin.complete.__revision__=ProvCon.dbui.wxwin.complete-module.html#__revision__,Variable ProvCon.dbui.wxwin.forms.__revision__=ProvCon.dbui.wxwin.forms-module.html#__revision__,Variable ProvCon.func.decorators.__revision__=ProvCon.func.decorators-module.html#__revision__,Variable ProvCon.func.functions.__revision__=ProvCon.func.functions-module.html#__revision__,Variable ProvCon.func.variables.__revision__=ProvCon.func.variables-module.html#__revision__"><a title="ProvCon.dbui.abstractui.fields.__revision__
ProvCon.dbui.abstractui.forms.__revision__
ProvCon.dbui.abstractui.navigators.__revision__
ProvCon.dbui.abstractui.recordlists.__revision__
ProvCon.dbui.meta.field.__revision__
ProvCon.dbui.orm.form.__revision__
ProvCon.dbui.orm.record.__revision__
ProvCon.dbui.orm.recordlist.__revision__
ProvCon.dbui.wxwin.complete.__revision__
ProvCon.dbui.wxwin.forms.__revision__
ProvCon.func.decorators.__revision__
ProvCon.func.functions.__revision__
ProvCon.func.variables.__revision__" class="py-name" href="#" onclick="return doclink('link-0', '__revision__', 'link-0');">__revision__</a></tt> <tt class="py-op">=</tt> <tt class="py-string">"$Revision: 63 $"</tt> </tt>
<a name="L5"></a><tt class="py-lineno"> 5</tt>  <tt class="py-line"> </tt>
<a name="ReentryError"></a><div id="ReentryError-def"><a name="L6"></a><tt class="py-lineno"> 6</tt> <a class="py-toggle" href="#" id="ReentryError-toggle" onclick="return toggle('ReentryError');">-</a><tt class="py-line"><tt class="py-keyword">class</tt> <a class="py-def-name" href="ProvCon.func.decorators.ReentryError-class.html">ReentryError</a><tt class="py-op">(</tt><tt class="py-base-class">exceptions</tt><tt class="py-op">.</tt><tt class="py-base-class">BaseException</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="ReentryError-collapsed" style="display:none;" pad="++" indent="++++"></div><div id="ReentryError-expanded"><a name="L7"></a><tt class="py-lineno"> 7</tt>  <tt class="py-line">    <tt class="py-keyword">pass</tt> </tt>
</div><a name="L8"></a><tt class="py-lineno"> 8</tt>  <tt class="py-line"> </tt>
<a name="singleentry"></a><div id="singleentry-def"><a name="L9"></a><tt class="py-lineno"> 9</tt> <a class="py-toggle" href="#" id="singleentry-toggle" onclick="return toggle('singleentry');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.func.decorators-module.html#singleentry">singleentry</a><tt class="py-op">(</tt><tt class="py-param">raise_exception</tt><tt class="py-op">=</tt><tt class="py-name">True</tt><tt class="py-op">,</tt> <tt class="py-param">default_value</tt><tt class="py-op">=</tt><tt class="py-name">None</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="singleentry-collapsed" style="display:none;" pad="++" indent="++++"></div><div id="singleentry-expanded"><a name="L10"></a><tt class="py-lineno">10</tt>  <tt class="py-line">    <tt class="py-docstring">"""</tt> </tt>
<a name="L11"></a><tt class="py-lineno">11</tt>  <tt class="py-line"><tt class="py-docstring">    Raise an exception if the decorated function is called recursively</tt> </tt>
<a name="L12"></a><tt class="py-lineno">12</tt>  <tt class="py-line"><tt class="py-docstring">    """</tt> </tt>
<a name="L13"></a><tt class="py-lineno">13</tt>  <tt class="py-line">    <tt class="py-keyword">class</tt> <tt class="py-def-name">_callable</tt><tt class="py-op">:</tt> </tt>
<a name="L14"></a><tt class="py-lineno">14</tt>  <tt class="py-line">        <tt class="py-keyword">def</tt> <tt class="py-def-name">__init__</tt><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">fn</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L15"></a><tt class="py-lineno">15</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entered</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L16"></a><tt class="py-lineno">16</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">fn</tt> <tt class="py-op">=</tt> <tt class="py-name">fn</tt> </tt>
<a name="L17"></a><tt class="py-lineno">17</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-1" class="py-name" targets="Method ProvCon.TFTP.Protocol.Packet.__repr__()=ProvCon.TFTP.Protocol.Packet-class.html#__repr__,Method ProvCon.TFTP.ProvisioningTFTP.BaseOven.__repr__()=ProvCon.TFTP.ProvisioningTFTP.BaseOven-class.html#__repr__,Method ProvCon.dbui.abstractui.fields.BaseArrayItemEditor.__repr__()=ProvCon.dbui.abstractui.fields.BaseArrayItemEditor-class.html#__repr__,Method ProvCon.dbui.abstractui.fields.BaseFieldEditor.__repr__()=ProvCon.dbui.abstractui.fields.BaseFieldEditor-class.html#__repr__,Method ProvCon.dbui.meta.field.Field.__repr__()=ProvCon.dbui.meta.field.Field-class.html#__repr__,Method ProvCon.dbui.meta.table.Table.__repr__()=ProvCon.dbui.meta.table.Table-class.html#__repr__,Method ProvCon.dbui.orm.record.Record.DataManipulationError.__repr__()=ProvCon.dbui.orm.record.Record.DataManipulationError-class.html#__repr__,Method ProvCon.dbui.orm.record.Record.DataQueryError.__repr__()=ProvCon.dbui.orm.record.Record.DataQueryError-class.html#__repr__,Method ProvCon.dbui.orm.record.Record.RecordIncomplete.__repr__()=ProvCon.dbui.orm.record.Record.RecordIncomplete-class.html#__repr__,Method ProvCon.dbui.orm.record.Record.RecordNotFound.__repr__()=ProvCon.dbui.orm.record.Record.RecordNotFound-class.html#__repr__,Method ProvCon.dbui.orm.record.Record.__repr__()=ProvCon.dbui.orm.record.Record-class.html#__repr__,Method ProvCon.docsis.compiler.encoder.error.__repr__()=ProvCon.docsis.compiler.encoder.error-class.html#__repr__,Method ProvCon.docsis.compiler.encoder.tlv.__repr__()=ProvCon.docsis.compiler.encoder.tlv-class.html#__repr__,Method ProvCon.docsis.compiler.encoder.tlv_multipart.__repr__()=ProvCon.docsis.compiler.encoder.tlv_multipart-class.html#__repr__,Method ProvCon.func.variables.TracedVariable.Tracer.__repr__()=ProvCon.func.variables.TracedVariable.Tracer-class.html#__repr__,Method ProvCon.func.variables.TracedVariable.__repr__()=ProvCon.func.variables.TracedVariable-class.html#__repr__,Method ProvCon.ui.uierror.__repr__()=ProvCon.ui.uierror-class.html#__repr__,Method ProvCon.wronolib.ipaddr.ip4addr.__repr__()=ProvCon.wronolib.ipaddr.ip4addr-class.html#__repr__,Method ProvCon.wronolib.ipaddr.ip4prefix.__repr__()=ProvCon.wronolib.ipaddr.ip4prefix-class.html#__repr__"><a title="ProvCon.TFTP.Protocol.Packet.__repr__
ProvCon.TFTP.ProvisioningTFTP.BaseOven.__repr__
ProvCon.dbui.abstractui.fields.BaseArrayItemEditor.__repr__
ProvCon.dbui.abstractui.fields.BaseFieldEditor.__repr__
ProvCon.dbui.meta.field.Field.__repr__
ProvCon.dbui.meta.table.Table.__repr__
ProvCon.dbui.orm.record.Record.DataManipulationError.__repr__
ProvCon.dbui.orm.record.Record.DataQueryError.__repr__
ProvCon.dbui.orm.record.Record.RecordIncomplete.__repr__
ProvCon.dbui.orm.record.Record.RecordNotFound.__repr__
ProvCon.dbui.orm.record.Record.__repr__
ProvCon.docsis.compiler.encoder.error.__repr__
ProvCon.docsis.compiler.encoder.tlv.__repr__
ProvCon.docsis.compiler.encoder.tlv_multipart.__repr__
ProvCon.func.variables.TracedVariable.Tracer.__repr__
ProvCon.func.variables.TracedVariable.__repr__
ProvCon.ui.uierror.__repr__
ProvCon.wronolib.ipaddr.ip4addr.__repr__
ProvCon.wronolib.ipaddr.ip4prefix.__repr__" class="py-name" href="#" onclick="return doclink('link-1', '__repr__', 'link-1');">__repr__</a></tt> <tt class="py-op">=</tt> <tt class="py-keyword">lambda</tt> <tt class="py-name">self</tt><tt class="py-op">=</tt><tt class="py-name">self</tt><tt class="py-op">:</tt> <tt class="py-string">"&lt;singlentry "</tt> <tt class="py-op">+</tt> <tt class="py-name">str</tt><tt class="py-op">(</tt><tt class="py-name">fn</tt><tt class="py-op">)</tt> <tt class="py-op">+</tt> <tt class="py-string">"&gt;"</tt>             </tt>
</div><a name="L18"></a><tt class="py-lineno">18</tt>  <tt class="py-line">             </tt>
<a name="L19"></a><tt class="py-lineno">19</tt>  <tt class="py-line">        <tt class="py-keyword">def</tt> <tt class="py-def-name">__call__</tt><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-op">*</tt><tt class="py-param">args</tt><tt class="py-op">,</tt> <tt class="py-op">**</tt><tt class="py-param">kwargs</tt><tt class="py-op">)</tt><tt class="py-op">:</tt>             </tt>
<a name="L20"></a><tt class="py-lineno">20</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entered</tt><tt class="py-op">:</tt> </tt>
<a name="L21"></a><tt class="py-lineno">21</tt>  <tt class="py-line">                <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L22"></a><tt class="py-lineno">22</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entered</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L23"></a><tt class="py-lineno">23</tt>  <tt class="py-line">                    <tt class="py-keyword">return</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">fn</tt><tt class="py-op">(</tt><tt class="py-op">*</tt><tt class="py-name">args</tt><tt class="py-op">,</tt> <tt class="py-op">**</tt><tt class="py-name">kwargs</tt><tt class="py-op">)</tt> </tt>
<a name="L24"></a><tt class="py-lineno">24</tt>  <tt class="py-line">                <tt class="py-keyword">finally</tt><tt class="py-op">:</tt> </tt>
<a name="L25"></a><tt class="py-lineno">25</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entered</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L26"></a><tt class="py-lineno">26</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L27"></a><tt class="py-lineno">27</tt>  <tt class="py-line">                <tt class="py-keyword">if</tt> <tt class="py-name">raise_exception</tt><tt class="py-op">:</tt>                     </tt>
<a name="L28"></a><tt class="py-lineno">28</tt>  <tt class="py-line">                    <tt class="py-keyword">raise</tt> <tt id="link-2" class="py-name" targets="Class ProvCon.func.decorators.ReentryError=ProvCon.func.decorators.ReentryError-class.html"><a title="ProvCon.func.decorators.ReentryError" class="py-name" href="#" onclick="return doclink('link-2', 'ReentryError', 'link-2');">ReentryError</a></tt> <tt class="py-op">(</tt> <tt class="py-name">str</tt><tt class="py-op">(</tt><tt class="py-name">self</tt><tt class="py-op">)</tt> <tt class="py-op">)</tt> </tt>
<a name="L29"></a><tt class="py-lineno">29</tt>  <tt class="py-line">                <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L30"></a><tt class="py-lineno">30</tt>  <tt class="py-line">                    <tt class="py-keyword">return</tt> <tt class="py-name">default_value</tt> </tt>
</div></div><a name="L31"></a><tt class="py-lineno">31</tt>  <tt class="py-line">                 </tt>
<a name="L32"></a><tt class="py-lineno">32</tt>  <tt class="py-line">    <tt class="py-keyword">return</tt> <tt class="py-name">_callable</tt> </tt>
</div><a name="L33"></a><tt class="py-lineno">33</tt>  <tt class="py-line"> </tt>
<a name="L34"></a><tt class="py-lineno">34</tt>  <tt class="py-line">                 </tt>
<a name="singleentryfallback"></a><div id="singleentryfallback-def"><a name="L35"></a><tt class="py-lineno">35</tt> <a class="py-toggle" href="#" id="singleentryfallback-toggle" onclick="return toggle('singleentryfallback');">-</a><tt class="py-line"><tt class="py-keyword">def</tt> <a class="py-def-name" href="ProvCon.func.decorators-module.html#singleentryfallback">singleentryfallback</a><tt class="py-op">(</tt><tt class="py-param">fallback</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
</div><div id="singleentryfallback-collapsed" style="display:none;" pad="++" indent="++++"></div><div id="singleentryfallback-expanded"><a name="L36"></a><tt class="py-lineno">36</tt>  <tt class="py-line">    <tt class="py-docstring">"""</tt> </tt>
<a name="L37"></a><tt class="py-lineno">37</tt>  <tt class="py-line"><tt class="py-docstring">    Call 'fallback' instead of the decorated function if the fn is called</tt> </tt>
<a name="L38"></a><tt class="py-lineno">38</tt>  <tt class="py-line"><tt class="py-docstring">    recursively</tt> </tt>
<a name="L39"></a><tt class="py-lineno">39</tt>  <tt class="py-line"><tt class="py-docstring">    """</tt> </tt>
<a name="L40"></a><tt class="py-lineno">40</tt>  <tt class="py-line">    <tt class="py-keyword">class</tt> <tt class="py-def-name">_callable</tt><tt class="py-op">:</tt> </tt>
<a name="L41"></a><tt class="py-lineno">41</tt>  <tt class="py-line">        <tt class="py-keyword">def</tt> <tt class="py-def-name">__init__</tt><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">,</tt> <tt class="py-param">fn</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L42"></a><tt class="py-lineno">42</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entered</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L43"></a><tt class="py-lineno">43</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt id="link-3" class="py-name"><a title="ProvCon.TFTP.Protocol.Packet.__repr__
ProvCon.TFTP.ProvisioningTFTP.BaseOven.__repr__
ProvCon.dbui.abstractui.fields.BaseArrayItemEditor.__repr__
ProvCon.dbui.abstractui.fields.BaseFieldEditor.__repr__
ProvCon.dbui.meta.field.Field.__repr__
ProvCon.dbui.meta.table.Table.__repr__
ProvCon.dbui.orm.record.Record.DataManipulationError.__repr__
ProvCon.dbui.orm.record.Record.DataQueryError.__repr__
ProvCon.dbui.orm.record.Record.RecordIncomplete.__repr__
ProvCon.dbui.orm.record.Record.RecordNotFound.__repr__
ProvCon.dbui.orm.record.Record.__repr__
ProvCon.docsis.compiler.encoder.error.__repr__
ProvCon.docsis.compiler.encoder.tlv.__repr__
ProvCon.docsis.compiler.encoder.tlv_multipart.__repr__
ProvCon.func.variables.TracedVariable.Tracer.__repr__
ProvCon.func.variables.TracedVariable.__repr__
ProvCon.ui.uierror.__repr__
ProvCon.wronolib.ipaddr.ip4addr.__repr__
ProvCon.wronolib.ipaddr.ip4prefix.__repr__" class="py-name" href="#" onclick="return doclink('link-3', '__repr__', 'link-1');">__repr__</a></tt> <tt class="py-op">=</tt> <tt class="py-keyword">lambda</tt> <tt class="py-name">self</tt><tt class="py-op">=</tt><tt class="py-name">self</tt><tt class="py-op">:</tt> <tt class="py-string">"&lt;singlentry "</tt> <tt class="py-op">+</tt> <tt class="py-name">fn</tt><tt class="py-op">.</tt><tt class="py-name">__name__</tt> <tt class="py-op">+</tt> <tt class="py-string">" fallback: "</tt> <tt class="py-op">+</tt> <tt class="py-name">fallback</tt><tt class="py-op">.</tt><tt class="py-name">__name__</tt> <tt class="py-op">+</tt> <tt class="py-string">"&gt;"</tt> </tt>
<a name="L44"></a><tt class="py-lineno">44</tt>  <tt class="py-line">            <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">fn</tt> <tt class="py-op">=</tt> <tt class="py-name">fn</tt> </tt>
</div><a name="L45"></a><tt class="py-lineno">45</tt>  <tt class="py-line">             </tt>
<a name="L46"></a><tt class="py-lineno">46</tt>  <tt class="py-line">        <tt class="py-keyword">def</tt> <tt class="py-def-name">__call__</tt><tt class="py-op">(</tt><tt class="py-param">self</tt><tt class="py-op">)</tt><tt class="py-op">:</tt> </tt>
<a name="L47"></a><tt class="py-lineno">47</tt>  <tt class="py-line">            <tt class="py-keyword">if</tt> <tt class="py-keyword">not</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entered</tt><tt class="py-op">:</tt> </tt>
<a name="L48"></a><tt class="py-lineno">48</tt>  <tt class="py-line">                <tt class="py-keyword">try</tt><tt class="py-op">:</tt> </tt>
<a name="L49"></a><tt class="py-lineno">49</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entered</tt> <tt class="py-op">=</tt> <tt class="py-name">True</tt> </tt>
<a name="L50"></a><tt class="py-lineno">50</tt>  <tt class="py-line">                    <tt class="py-keyword">return</tt> <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">fn</tt><tt class="py-op">(</tt><tt class="py-op">*</tt><tt class="py-name">args</tt><tt class="py-op">,</tt> <tt class="py-op">**</tt><tt class="py-name">kwargs</tt><tt class="py-op">)</tt> </tt>
<a name="L51"></a><tt class="py-lineno">51</tt>  <tt class="py-line">                <tt class="py-keyword">finally</tt><tt class="py-op">:</tt> </tt>
<a name="L52"></a><tt class="py-lineno">52</tt>  <tt class="py-line">                    <tt class="py-name">self</tt><tt class="py-op">.</tt><tt class="py-name">entered</tt> <tt class="py-op">=</tt> <tt class="py-name">False</tt> </tt>
<a name="L53"></a><tt class="py-lineno">53</tt>  <tt class="py-line">            <tt class="py-keyword">else</tt><tt class="py-op">:</tt> </tt>
<a name="L54"></a><tt class="py-lineno">54</tt>  <tt class="py-line">                <tt class="py-keyword">return</tt> <tt class="py-name">fallback</tt> <tt class="py-op">(</tt><tt class="py-op">*</tt><tt class="py-name">args</tt><tt class="py-op">,</tt> <tt class="py-op">**</tt><tt class="py-name">kwargs</tt><tt class="py-op">)</tt> </tt>
</div></div><a name="L55"></a><tt class="py-lineno">55</tt>  <tt class="py-line">    <tt class="py-keyword">return</tt> <tt class="py-name">_callable</tt> </tt>
</div><a name="L56"></a><tt class="py-lineno">56</tt>  <tt class="py-line"> </tt><script type="text/javascript">
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